Sluiceway nozzle



F. B. ALLEN SLUIGEWAY NOZZLE Dec. il, 1928.

Filed NOV. 12, 1925 Dec. 11, 192s. l 1,694,635I

l vF. Es. ALLEN Filed Nov. l2, 1925 5 Sheets-Sheet 2 ;9[ lNvENToR l@J7/wbt? AT ORNEYS Dec. l1, 1928. 1,694,635

Filed Nov 12. 1925 .fll g Patented Dec. 11, 1928.

UNITED STA TES FRANK B. ALLEN, or rovina lannion TowNsnir, MONTGOMERYCOUNTY, rENNsYn vANiA, AssreNoR, BY Masiva ASSIGNMENTS, To FRANK H.DUNBAR, or CLEVE- LAND, OHIO.

SLUICEWAY NOZZLE.

Application filed November This invention relates to the art oftransporting solid material and is more particularly concerned withapparatus for conveying solid material by means Of fluid' moving at ahigh velocity.

One object of the invention is to construct apparatus for conveyingsolid material pro-\ vided with means for converting the static energyof a confined liquid into high velocity energy in a fluid stream.

Another object is to construct a sluiceway for carrying solid materialwhich is provided with an improved means Vfor increasing the materialcarrying eliciency thereof.

A further object is to construct a nozzler for discharging liquid underhigh pressure in a round, substantially non-spreading liqf uid stream.

Other objects will appear and be pointed out hereinafter. I

`In the drawings forming a part of this specification n i Fig. 1 is a`vertical section and shows in reduced scale -apparatus embodying one`form of my invention and structure with which it may be associated.

Fig. Qfis an end view taken substantially on line 2 2 OfFig. 3, showingthe nozzle and associated parts ofFig. l.

Fig. 3 is an enlarged vertical section taken substantially on line 3 3of Fig. 2. l

Fig. l is a section taken substantially on line 4 4 Of Fig. 3.

Fig.-5 is an end elevation of a sluiceway provided with a modified formof nozzle.

Fig. 6 is a section taken substantially on line 6 6 of Fig. 5, and, f Y

Fig. 7 is a view similar to Fig. 3 but showing yet another modified formof sluiceway and nozzle.

Inconveying solid material by means of iiuid moving at a relatively highvelocity, and more specifically liquid discharged `under high pressurelso as to have a. high velocity, I have found that the efiiciency andconveying capacity of such conveying apparatus depends to an unexpectedextent upon the form of the nozzle employed in discharging the fluidunder hiOh pressure.

For example, I have discovered that a fiatstreain of iiuid, particularlyliquid, tends to spreader spray and consequently has a material carryingcapacity which, while greater than certain forms of fluid streams is notparticularly elicient. yI have discovered 12, .1.925. serial No. 68,638.

that a substantially round and non-spraying stream of iiuid is highlykellicient and is eapable of carrying increased amounts of solidmaterial with the same fluid pressure as certain otherk forms ofstreams, or of conveying more material with lower pressure than cer-,tain other streams.

VReferring to Figs. 1 to 4 in which I have illustrated one form of myinvention, l indicates fragmentarily walls joining a hopper of a fuelburning furnace with a sluiceway 2 therebe-neath which has an open topto receive solid material discharged from the hop per. It will beunderstood that the sluiceway is of suiicientsize toaccommodate thematerial as discharged thereinto from the hopper and may lead vto .asuitable place of disposal for the solid material. At one or more.points in the sluiceway I provide openings 3a in the bottom wall ofsluiceway 2 through which an elbow shaped nozzle 3 projects, fordischarging yfluid under pressure into the sluiceway and adjacent andsubstantially parallel to the bottom thereof, for the purpose ofconveying solid. material along the sluiceway. This nozzle 3 projectsinto the bottoni of ther sluiceway, preferably Lwith an inlet opening 5Outside the sluiceway and with one or more outlet openings 6 inside thesluiceway, and is held in place by a nut-4 which screws onto the lowerend of the nozzle 3 and is drawn up against a gasket l? interposedbetween the nut and an annular boss on the sluiceway and through whichthenozzle extends. As shown, this nozzle may convenientlybe disposedadjacent to an end of one of the sluiceway sections. Y

The passage 6 within the nozzle is of decreasing cross section as itapproaches the outlet end 6 and as shown has walls which are formed bycurving surfaces substantially free from sharp projections or turns, inorder to 'decrease to the minimum the resistance to passage of liquidtherethrough. VEach outlet opening 6, in this case two, is preferablyprovided with a perforated tubular nose piece 7 which is suitably shapedinteriorly to form liquid passing therethrough into a substantiallysolid, round, non-spraying stream which may have any desired velocity.'I have found that a nose piece having a conically shaped perforation'inits rear end with side walls converging toward the front end and merginginto a. portion having substantially cylindrical surfaces, has givensatis- .llO

factory results. Other forms of perforations in the nose pieces ornozzles having suitably formed outlet openings and notpro vided withnose pieces may be employed but the illustrated construction is simpleand cheap to make, easy to clean and efcient in operation.

It will be noted by referring to Figs. 2 and 3 that the nozzle 3projects considerably above the bottom of the sluiceway 2, and it willbe understood that abrasive materials in. passing along the sluicewaywould tend either to lodge on such projections or quickly to wear themaway, thereby destroying the nozzle. In order not to impede the passageof solid material in the sluiceway and to avoid undue wear on thenozzle, I have provided a wear plate 8 disposed on the rear and top sideof the nozzle and secured in place as by securing means 9, the topsurface of the wear plate being suitably inclined so that solid materialmay readily pass thereover.

ln Figs. 5 and 6, l have illustrated a modified form of nozzle and meansfor assembling the same in a sluiceway. In these figures, 2n designatesa fragmentary portion of a substantially round sluiceway. The nozzle 10,as shown, is formed integrally with the bottom of the sluiceway and hasan inlet opening 11 and one or more outlet openings 12 inside of thesluiceway.` A source of fluid under pressure, not shown, may be attachedto the end of the nozzle outside of the sluiceway. The outlet end of thenozzle 10 is provided with a nose piece 7 of substantially theconfiguration described above in connection with Figs. 1 to B. Thenozzle is protected by a Wear plate 8a` disposed on the rear side of thenozzle and secured in place in a sluiceway by any suitable means, suchas securing means 9. It will be understood that the wear piece of notonly F 1 and 8, but also of Figs. 5 and 6 has substantial engagementwith the sluiceway along its side edges and rear end so that solidmaterial will have little or no tendency to become wedged between thesluiceway and plate.

In Fig. 7, l have illustrated a further modified structure embodying myinvention. In this figure, the sluiceway 2b is formed in the riser 13 ofcertain of the steps of the sluiceway bottom and is provided with anozzle 16 which extends through the riser of the sluiceway beingattached by a ange 14 and suitable means 15, and which is provided withsuitable means, such as a flange 17 at Vits outer end to connect up withsuitable source of fluid under pressure. A nose piece 7b ofsubstantially the same configuration as has been previously describedisfitted in the outlet end of the nozzle. By reason of the steps formedin the sluiceway and the disposition of the nozzle to project throughthe riser part of the step, the wear plates of the precedingmodifications may be dispensed with, it being reeass understood that thematerial passing along the sluiceway will move over the top of thenozzle and down over the step where fluid from the-nozzle will engagewith it.

rlhe foregoing detailed description ofY my invention has been made forthe purpose of enabling those skilled in the art to practice theinvention and not for the purpose of lim iting my invention to thedetails shown and describedz The scope of my invention is defined bywhat is claimed.

lllhat `is claimed is:

1. In combination with a solid material carrying sluiceway, a. nozzle inthe sluiceway having an outlet opening inside of the sluiceway, anddisposed adjacent and parallel to a wall of the sluiceway, a nose piecefor the outlet opening of the nozzle'provided with a substantially roundtubular perforation, and a wear plate in the sluiceway disposedrearwardly of and in wear protecting position with respect to thenozzle.

2. In combination with a solid material carrying sluiceway, a nozzle inthe sluiceway having an inlet opening exterior to the sluiceway andoutletopenings within the sluiceway and disposed adjacent andsubstantially parallel to a wall thereof, and nose pieces in the saidoutlet openings having perforations formed to provide a plurality ofsubstann tially solid, round, non-spraying streams of iiuid travellingat high velocity when liquid under pressure is passed therethrough.

3. In combination with a solid material carrying sluiceway, a nozzle inthe sluiceway having an inlet opening outside of the sluiceway and anoutlet opening inside of the sluiceway, and disposed adjacent andparallel to a wall ofthe sluiceway, a removable nose piece for theoutlet opening of the nozzle provided with a substantially round tubularperforation, and a wear plate in the sluiceway disposed rearwardly ofand in wear protecting position with respect to the nozzle.

a. In combination with a solid material carrying sluiceway, having anopening in the upper portion thereof, means disposed in the lowerportion of the sluiceway for forming a high velocity stream of liquid,said stream having a high conductive capacity for solid materials, thesaid means including a nozzle having a substantially cylindrical outletpassage, means for discharging into the nozzle liquid having highkinetic energy, and a removable nose for the outlet opening of thenozzle provided with a substantially round tubular perforation, wherebya substantially non-spraying stream fluid of high velocity may beinjected into the sluiceway adjacent and parallel to one of the walls ofthe sluiceway, Aand a wear plate in the sluiceway disposed rearwardly ofand in wear protecting position with respect to the nozzle.

5.k Ina device for conveying solid material,

a sluiceway, a nozzle integral therewith having an inlet opening outsideof the sluiceway and an outlet opening inside of the sluioeway, and aremovable 11ose-piece secured to the nozzle.

6. In a device for Conveying solid material, a sluieeway, a nozzleintegral therewith having an inlet opening outside of the sluiceway andan outlet opening inside of the sluiceway, a removable nosepiece securedto the nozzle, and means for protecting the exterior of the nozzle fromthe material passing through the sluiceway.

In testimony whereof I hereunto aiix my signature this 7th day ofNovember, 1925.

FRANK B. ALLEN.

